If ever there was a consumer market in need of disruption it is the local TV-distribution market, in which cable companies generally have a monopoly position and monopoly attitude.

(Yes, satellite and telco TV have chipped away at the monopoly, as has the Internet. But the cable companies still have enormous power and profits, and that power is reflected in their monthly bills.)

So the idea that Google may come charging into markets, build new fiber networks, and provide a super-high-speed Internet-based alternative to cable companies is great news for consumers.

But it's lousy news for Google investors.

Why?

Because building and operating local fiber networks is seriously expensive.

One of the remarkable aspects of Google's core business is how much cash it generates.

In 2011, Google's business generated $15 billion of cash flow from operations. To support this cash flow, Google also invested about $4 billion in property, plant, and equipment (buildings, servers, data centers, etc.). This left the company with about $11 billion of free cash flow--cash that piled up on its balance sheet.

In other words, for every dollar of cash Google generated from its business operations, it kept about 75 cents after capital investments.

This compares very favorably to the economics of a cable or telephone company, which has to spend much more money on equipment.

In 2010, Verizon generated a staggering $33 billion of cash from operations, more than twice as much as Google generated. But Verizon had to spend a whopping $16 billion on equipment. This left it with only $17 billion of free cash flow.

Verizon, in other words, only keeps about 50 cents of cash for every dollar of cash its operations produce.

Ultimately, what investors are buying when they buy stocks is a claim on the free cash flow of a company--the cash left over after all the bills are paid.

This is one of several reasons why Google trades at a higher multiple of operating cash flow than Comcast and Verizon do. (The other reason is that the market concludes, probably rightly, that Google's future growth prospects are better).

If Google plunges headlong into the the local-fiber-and-Internet service market, it will have to spend a much higher percentage of its cash-flow from operations on equipment than it currently spends.

Google will still have its core search business, of course, so its cash-flow conversion won't get as bad as that of Verizon and Comcast. But it will deteriorate.

And, all else being equal, that will cause Google's stock multiple to compress.

Of course, Google's foray into the local fiber business also highlights another concern that investors have about Google--namely, focus. Despite CEO Larry Page's new focus on focus--Page has killed a lot of pet projects Google was playing with--Google is still trying to fight an alarming number of wars:

Self-driving cars, computerized glasses, wind power, and other cool love projects against whoever is competing in those businesses, and now

The TV and Internet access war against cable companies and phone companies

Is Google going to win all those wars?

No way.

Does Google have the discipline to focus on winning a few critical wars instead of a half-dozen that it might want to win but can't?

Remains to be seen.

But make no mistake: The penalty for trying to fight ALL wars instead of picking the couple that are critically important to your future is big.

15 years ago, a company called Microsoft that was trying to do everything was dragged into court and threatened with breakup because its monopoly power seemed so acute that it was stifling competition in the tech industry.

Microsoft's value has decreased since then.

The value of Apple and Google and IBM, meanwhile--companies that, initially anyway, focused intently on winning only one or two wars--has skyrocketed.

Popular from BI Prime

Close iconTwo crossed lines that form an 'X'. It indicates a way to close an interaction, or dismiss a notification.Check mark iconA check mark. It indicates a confirmation of your intended interaction.